Wrench.



R.. C. SHOWALTER.

WRENCH.

APPLICATION FILED AUG.23,1911.

1.032,3()5, Patented July 9, 1912.

al miH BOY C. SHOWALTER, 0F ALTOONA, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent.

Application filed August 23, 1911. Serial No. 645,512.

To all whom t may concern:

Be it known thatv I, Ror/ C. SHOWALTER, a citizen' of the United States, residing at Altoona, in t e county of Blair and State of Pennsylv nia, have invented new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to certa-in novel and usefulimprovements in wrenches and has particular application to quick-acting monkey wrenches.

In carrying out my invention, it is my purpose to provide a wrench embracing a stationary jaw and a slidin@r jaw mounted upon the shank or stock of the wrench, and means for readily and quickly manipulating the sliding' jaw to shift the same to a prei determined point along the shank, provision being also made for firmly and securely holdin@F the sliding jaw in the desired position oiVip adjustment.

I also aim to provide a monkey wrench which will embody in its construction the desired features of simplicity, durability, strength and eiciency.

l/Vith the above-recited objects, and others of a similar nature in view, the invention consists in the construction, combination and arrangementof parts, set forth in and falling within the scope of the appended claim.

In the accompanying drawing Figure 1 is a view in side elevation-0f a wrench embodying my invention. Fig.V 2 is a vertical longitudinal section of the wrench. Fig. 3 is a cross sectional View.

Referring 'now to the accompanying drawing in detail, the numeral 1 indicates the shank or stock of the Wrench carryingT a stationary jaw head2 at one end whilethe opposite end forms the handle section 3. The front longitudinal edge of the stock is provided with a/seriesof notches or indentations 4 forming a rack for the purpose hereinafter described. Slidably mounted upon the shank is the movable aw 5 formed integral with short tubular shank sections 6 through which passes the stock or shank of the wrench, the tubular sections 6 being hinged or pivotally connected as at 7 to the sleeve 8. It will be noted that Where the ends of the tubular shank 6 and the sleeve 8 are connected, I employ two hinges or pivots, one labove and one below the stock- 1. The tubular section 6 of the sliding j avv fits snugly over the stock, so that while it may slide freely therealong, it is incapable 8 is provided with a relatively large longitudinal opening 9 therethrough, so' t-hatthe sleeve is capable of a certain amount of .lateral movement relative to the stock. Projecting inward at an angle from the bottom face of the sleeve is a stationary pawl l0 adapted to normally lie in locking engagement with the rack on the stock when the sliding jaw is to be held stationary. In order to release t-he pawl .to permit the movement of the sliding jaw, I fasten Within the recess l1 in the upper portion of the sleeve a curved leaf spring 12, which is adapted to bear against the adjacent face of the shank, the end 13 of said spring eX- tending through a slot in the adjacent Wall of the sleeve. l

From the above description, taken in connection with the accompanying drawings, the construction and manner of operating my improved wrench will be readily apparent. The .sliding jaw is normally held locked and stationary by the pawl engag ing with the rack and being held in such position by the action of the leaf spring, the pressure of said spring being sufficient to overcome any tendency which said pawl might have from` disengaging said/rack by reason of the inward pressure of the rear pivot pin 7 .during the turning of a nut, To release the jaw from locking engagement, pressure is placed upon the sleeve directly over the leaf spring which depresses and tends to flatten the latter, thus moving the sleeve laterally and bringing the pawl out of engagement with the rack. By pressing 'the sleeve forward or backward along the stock, the sliding'jaw carried by thetubular shank 6 may be shifted. When the jaw has been brought to the desired position, pressure upon the spring is released, anl the latter springing back into its normal position draws the paWl into engagement with the rack, thus locking the sliding jaw. It will be seen that While the tubular shank connected to the sliding jaw prevents any shifting or lateral play of the latter7 such shank section being jointed or hinged to the depressible sleeve, may be moved readily along the shank With the lat-ter.

I claim A wrench comprising a shank having a rack on one face thereof, a stationary jaw carried by said shank, a sliding jaw mounted on said shank and having a tubular porratented Julye, 191;.1y

4of lateral play upon the stock. The sleeve with an enlarged recess portion and e'gs'lot in one Wall thereof, .a pawl carried b said sleeve and adapted to engage said rae and a leafl sg ing havin one end secured in seid enlarge recess en its free end projecting v through l.said slot,y said slhTev-e'dbfeijag'` adapted Vi() v to bear against said sha to hold saidpawl connected to in engagement with-sai rack.

in presence oA two witnesses. A n

' ROY C. SHOWALTER.

` In testimon whereof I :11H3 my signature Witnesses: Y n D. yLLOYD CLAYCOMB, MARYC. MAcComrAo. 

